A complete hub motor longboard wheel I can buy/order?

[maxchilton]

I have a setup with the same 63mm motors as pedi sells that I'm prototyping, and yes, you can pull 2kw a motor. If I pin mine to accelerate hard, it will cut out due to battery sag after 2-3 seconds, and my watt meter will be reading about 3.5kw power. When I get my new batt's on the setup I don't think I would have a problem getting 5kw peak power readings. From my perspective, this is much more power than you really need/want 99% of the time.

I'm holding my drive system out until I know it is fully reproducible and faultless. Trialling some new motors soon.

25x47 stator would be similar to the 6354 motor, and that geared modestly is not hugely reliable in my opinion. One might be enough for up to 15mph, but dual would be the way.

There's a HUGEE difference between what your watt meter reads and what your motor is actually putting out. Your watt meter simply calculates amps X volts = watts, it doesn't take in to account resistance, thermal efficiencies, load etc. And when you get crazy spikes like 3.5kw of power most of that energy is wasted as heat. (that's why your motor get really hot after high power runs) That's why I always laugh when people claiming huge watt output numbers. Typical rule of thumb, it takes about 500watts continuous to cruise happily at 25mph. If you're flat out and can barely top 25, you're generating less than 500w continuous.

 

[Hummina Shadeeba]

Sorry Duu. Yea 9s is nominally 33. My point was to correct something I thought was wrong
Bandaro are u making hub motors too seems the game everyone is into

what's the consenses on the quietest esc? the vesc I'm guessing.

So sensors seem not worth it with the hub motors or I guess no one is making them to see.

pediglide I didn't read ur whole thread, do u add more glue to the magnets?

 

[bandaro]

There's a HUGEE difference between what your watt meter reads and what your motor is actually putting out. Your watt meter simply calculates amps X volts = watts, it doesn't take in to account resistance, thermal efficiencies, load etc. And when you get crazy spikes like 3.5kw of power most of that energy is wasted as heat. (that's why your motor get really hot after high power runs) That's why I always laugh when people claiming huge watt output numbers. Typical rule of thumb, it takes about 500watts continuous to cruise happily at 25mph. If you're flat out and can barely top 25, you're generating less than 500w continuous.

Yeah, that's just the amount the motors are pulling, what gets laid down is much less but much harder to measure so I'm going off the watt meter. As for cruise at 25, that's not a problem. I generally cruise at around 30mph and have a lot more power left. I can sit at 30, hit a slope and keep the speed. I would say to sit at 25 you would be pulling about 1Kw on the meter, from my recordings and what I'm seeing watching vedders videos that have the specs on screen.


Regarding sensors, I was showing some people my board and they were taking off without a push, going VERY gentle (they weren't skaters) and while it stuttered a lot, it was reasonably smooth. If it wasn't on smooth ground it might have been an issue though. For me, I always give a single push and then power, but testing it, it will stutter the first foot or two but then the motors will run smoothly, and that's trying to go from zero to walking speed, can wind up from walking speed to max as fast as I can stay on it. It's always a good idea to push first anyway though as that's where most of the motor load is.

 

[LEVer]

bandaro, your outputs are almost exactly like mine. Cheers!

 

[bandaro]

bandaro, your outputs are almost exactly like mine. Cheers!

Yeah, only so much you can do with the same base components, one of the reasons I haven't released any yet too. We are both solving the same issues with the same gear, and getting the same findings for the most part. Although I was cheeky, I mounted the motors on a 195mm truck paired with a 180 up front, gave me a little less cutting back and more motor cover/less wheel offset to match the front width right from the start, allowing for a single drive. I never bothered to use this single motor setup however, I felt it would have been unbalanced.

 

[sheil]

I'm worried I won't have enough juice with the space cell.

what do you mean, juice?

are you talking how long you can ride for? OR are you talking peak amps you can draw?

in terms of capacity these batteries you are comparing are nearly identical. The alien copy of the space cell is 296Wh - The SPACE cell is 277Wh.... this is equivalent to about 2kms in terms of range difference. but maybe not even that depends what the voltage sag is like with those unknown lipo in alien pack.

PLEASE NOTE - These packs might look similar - but they are nothing alike!!!!

The Alien pack uses LIPO which at absolute best is good for about 300 charges - LIPO Cells tend to get out of balance very easily, the BMS might help but there is no specs about the BMS and whether it has cell balancing features. The Alien Pack should not be charged unattended - risk of fire is much greater with lipo if a cell is damaged or a cell has been over discharged.

The SPACE Cell uses High quality / High discharge Cells made by LG. Expect at the absolute minimum Double the lifespan at 600 charges (that's if you abuse it). But realistically it's probably going to last around 900 charge cycles - thats up to 3 times longer. The chemisty used in the 18650 type cell is renowned for staying balanced when in a pack with other cells. Some people use them without BMS and after several charge cycles still have cells balanced. The battery chemistry is much more stable, any battery can exploded & cause fire if abused, but the chance of it happening with the SPACE cell is much much lower.

base don the current advertised prices online the space cell is about 6% more expensive, but we offer free world wide shipping, so it is probably cheaper once you add shipping charges for Alien.

So when you look at cost-per use - The SPACE cell at absolute worst is about 76 Cents per charge VS the Alien absolute best $1.44 per charge (more if you add shipping)

Hey buddy! Sorry for the late reply!

Yes I meant juice for how long I can ride. I think I'll probably end up going with the space cell but I would love a pack that is perhaps slightly longer but narrower, so I can insert them inside my handmade decks. My dream is the have a board with the parts as concealed as possible but with a lot of kick and endurance

 

[tremendo]

I'm worried I won't have enough juice with the space cell.

what do you mean, juice?

are you talking how long you can ride for? OR are you talking peak amps you can draw?

in terms of capacity these batteries you are comparing are nearly identical. The alien copy of the space cell is 296Wh - The SPACE cell is 277Wh.... this is equivalent to about 2kms in terms of range difference. but maybe not even that depends what the voltage sag is like with those unknown lipo in alien pack.

PLEASE NOTE - These packs might look similar - but they are nothing alike!!!!

The Alien pack uses LIPO which at absolute best is good for about 300 charges - LIPO Cells tend to get out of balance very easily, the BMS might help but there is no specs about the BMS and whether it has cell balancing features. The Alien Pack should not be charged unattended - risk of fire is much greater with lipo if a cell is damaged or a cell has been over discharged.

The SPACE Cell uses High quality / High discharge Cells made by LG. Expect at the absolute minimum Double the lifespan at 600 charges (that's if you abuse it). But realistically it's probably going to last around 900 charge cycles - thats up to 3 times longer. The chemisty used in the 18650 type cell is renowned for staying balanced when in a pack with other cells. Some people use them without BMS and after several charge cycles still have cells balanced. The battery chemistry is much more stable, any battery can exploded & cause fire if abused, but the chance of it happening with the SPACE cell is much much lower.

base don the current advertised prices online the space cell is about 6% more expensive, but we offer free world wide shipping, so it is probably cheaper once you add shipping charges for Alien.

So when you look at cost-per use - The SPACE cell at absolute worst is about 76 Cents per charge VS the Alien absolute best $1.44 per charge (more if you add shipping)

So SPACE Cell can work with CarvOn Dual Motor with 2250W each?

 

[elkick]

Yes it does. I'm using exactly this configuration now together with two VESC's.

 

[tremendo]

Yes it does. I'm using exactly this configuration now together with two VESC's.

Thanks elkick. Have you built or in the process of building? Is there any thread for your build?

 

[elkick]

There is no extra thread for this build. I updated the 3 months old version of it and laminated a new box (needs to dry). I'll put some pictures to this thread: https://endless-sphere.com/forums/viewtopic.php?f=35&t=68614.

But it's actually quite simple: take a Space Cell, 2 VESCs, Pediglide's hub motors and a Kama Nunchuk, connect everything together (that's easy done) and mount it on the board. Just a preview of the new drop through Board: